Coccidiosis, Ileorectal, E brunetti

Introduction

A relatively rare form of coccidiosis affecting chickens worldwide caused by Eimeria brunetti. Of moderate to high pathogenicity, it is found in the terminal ileum, caecum and rectum. Morbidity and mortality are variable.

Signs

Depression.

Ruffled feathers.

Closed eyes.

Inappetance.

Poor production.

Diarrhoea, blood in faeces.

Post-mortem lesions

Petechiae and thickening of the distal third or more of intestine, extending into caecal tonsils.